PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SS20078-1Transistor

G E C Marconi Communications Ltd · NSN 5961-00-926-2533 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-926-2533 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-926-2533. Primary manufacturer part number: SS20078-1.
Features
  • Transistor — FSC 5961
  • Semiconductor Material: SILICON
  • Internal Configuration: JUNCTION CONTACT
  • Power Rating Per Characteristic: 800.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
  • Test Data Document: 81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Overall Diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
  • Terminal Length: 0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
  • Features Provided: HERMETICALLY SEALED CASE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-926-2533, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is G E C Marconi Communications Ltd. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 29 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-926-2533
Primary Part NumberSS20078-1
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerG E C Marconi Communications Ltd
StatusCANCELLED
Semiconductor MaterialSILICON
Internal ConfigurationJUNCTION CONTACT
Power Rating Per Characteristic800.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Test Data Document81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Overall Diameter0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
Terminal Length0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Features ProvidedHERMETICALLY SEALED CASE
Mounting MethodTERMINAL
Voltage Rating in Volts Per Characteristic75.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 50.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Current Rating Per Characteristic800.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Specification/standard Data81349-MIL-S-19500/251 GOVERNMENT SPECIFICATION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-022-4386 INTERCHANGEABLE
Transistor
5961-00-050-7499 INTERCHANGEABLE
Transistor
5961-00-059-4464 INTERCHANGEABLE
Transistor
5961-00-089-0499 INTERCHANGEABLE
Transistor
5961-00-175-6973325083 INTERCHANGEABLE
Transistor
Telemechanics Inc
5961-00-406-3074 INTERCHANGEABLE
Transistor
5961-00-436-8797 INTERCHANGEABLE
Transistor
5961-00-450-6343 INTERCHANGEABLE
Transistor
5961-00-457-9158 INTERCHANGEABLE
Transistor
5961-00-917-1875599391 INTERCHANGEABLE
Semiconductor Device Set
Bae Systems Information & Electronic Systems Integration Inc.
Cross-Reference Index
Part NumberManufacturer
SS20078-1 G E C Marconi Communications Ltd (GBR)
1854-0013 Hewlett-Packard Company Dba HP (USA)
JAN2N2218A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2N2218A Raytheon Company Dba Raytheon Co (USA)
BFY41 Nokia Nokia Services Limited (AUS)
19A115591P1 General Electric Co Mobile Communications Business Div (USA)
2N2218 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
352-7500-030 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
2N2218A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2N2218 Freescale Semiconductor, Inc. (USA)
SS20078-1 Leonardo Mw Ltd (GBR)
352-7500-720 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
2N2218A Electronic Industries Association
2N2218 Fairchild Semiconductor Corp (USA)
MIL-S-19500/251 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2N2218AA Adelco Elektronik Gmbh (DEU)
JANTX2N2218A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
PS102239 G E C Marconi Communications Ltd (GBR)
PS102239 Leonardo Mw Ltd (GBR)
MIL-PRF-19500/251 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5961-00-022-4386INTERCHANGEABLE
TRANSISTOR
5961-00-050-7499INTERCHANGEABLE
TRANSISTOR
5961-00-059-4464INTERCHANGEABLE
TRANSISTOR
5961-00-089-0499INTERCHANGEABLE
TRANSISTOR
5961-00-175-6973INTERCHANGEABLE
TRANSISTOR
325083
5961-00-406-3074INTERCHANGEABLE
TRANSISTOR
5961-00-436-8797INTERCHANGEABLE
TRANSISTOR
5961-00-450-6343INTERCHANGEABLE
TRANSISTOR
5961-00-457-9158INTERCHANGEABLE
TRANSISTOR
5961-00-917-1875INTERCHANGEABLE
SEMICONDUCTOR DEVICE SET
599391
5961-00-949-1432INTERCHANGEABLE
TRANSISTOR
5961-00-985-2363INTERCHANGEABLE
TRANSISTOR
352-0433-00

Frequently Asked Questions

What is NSN 5961-00-926-2533?

NSN 5961-00-926-2533 is a Transistor, manufactured by G E C Marconi Communications Ltd, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-926-2533?

NSN 5961-00-926-2533 has 29 cross-referenced part numbers: SS20078-1 (G E C Marconi Communications Ltd), 1854-0013 (Hewlett-Packard Company Dba HP), JAN2N2218A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2N2218A (Raytheon Company Dba Raytheon Co), BFY41 (Nokia Nokia Services Limited) and 24 more.

What NSN replaces 5961-00-926-2533?

There are 12 known substitutes for 5961-00-926-2533: 5961-00-022-4386, 5961-00-050-7499, 5961-00-059-4464 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SS20078-1?

Key specifications for SS20078-1: Semiconductor Material: SILICON; Internal Configuration: JUNCTION CONTACT; Power Rating Per Characteristic: 800.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION; Test Data Document: 81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-926-2533 still in active supply?

NSN 5961-00-926-2533 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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